Manipulating User Part of Header by Randomly Picking Number from Pool

ARM provides the ability to manipulate a user part of a header by picking a number from a pool of numbers. The pool of numbers is defined in a Prefix Group.

The Prefix Group shown in the preceding figure is a pool of the numbers: 100,200,300. Range (such as 400-450) is not supported.

Operators can manipulate the user part of the SIP header by replacing it with a random number from a predefined pool of numbers. The SIP Manipulation shown in the figure below replaces the Source URI User with a random number from the ‘didPoolTest’ pool:

The feature is part of the SIP Manipulation feature and therefore can be used from Policy Studio Action and from Routing Rule Action.